Expires:202608162030;;277814 FZUS54 KBRO 160742 CWFBRO Coastal Waters Forecast for the Lower Texas Coast National Weather Service Brownsville TX 242 AM CDT Sun Aug 16 2026 Lower Texas coastal waters from Baffin Bay to the mouth of the Rio Grande out 60 NM. Seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 10 percent of the waves. GMZ170-175-162030- Gulf waters from Port Mansfield to the Rio Grande extending from 20 to 60 nm- Gulf waters from Baffin Bay to Port Mansfield extending from 20 to 60 nm- 242 AM CDT Sun Aug 16 2026 .TODAY...Southeast winds 5 to 10 knots, becoming east this afternoon. Seas 3 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds. A slight chance of showers and thunderstorms. .TONIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 6 seconds. .MONDAY...South winds around 5 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of showers and thunderstorms early in the afternoon. .MONDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds and east 1 foot at 9 seconds. .TUESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds and east 1 foot at 9 seconds. .TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds and southeast 2 feet at 9 seconds. .WEDNESDAY...South winds around 10 knots. Seas 2 to 3 feet. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. .THURSDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Winds and seas higher in and near thunderstorms. $$